feat(session-query): checkpoint build round 1

docs/cordis-catalog/events.md

@@ -237,7 +237,7 @@ An event was appended to a session log (sync, fire-and-forget). This is the per-
 
 Types: [SessionEvent](../core-data-structures/core.md)
 
-Source: [`packages/core/session/src/index.ts:47`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:55`](../../packages/core/session/src/index.ts)
 
 ### `session/flush` — parallel
 
@@ -247,7 +247,27 @@ Awaited durability checkpoint. The agent loop awaits `ctx.parallel('session/flus
 'session/flush'(session: Session): Promise<void> | void
 ```
 
-Source: [`packages/core/session/src/index.ts:57`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:65`](../../packages/core/session/src/index.ts)
+
+### `session/persisted` — parallel
+
+A persistence backend committed a canonical session-log change. This is an observe-only notification for derived read models: the durable write has already succeeded, and listener failures are contained rather than propagated into append, load, flush, or teardown.
+
+```ts cordis-catalog
+'session/persisted'(header: SessionHeader, change: SessionPersistedChange): Promise<void> | void
+```
+
+Source: [`packages/session-persistence/session-persistence/src/index.ts:50`](../../packages/session-persistence/session-persistence/src/index.ts)
+
+### `session/removed` — parallel
+
+A session left the live store. The header is snapshotted after the store entry is removed; listener failures are contained and cannot break the owning fiber's teardown.
+
+```ts cordis-catalog
+'session/removed'(header: SessionHeader): Promise<void> | void
+```
+
+Source: [`packages/core/session/src/index.ts:47`](../../packages/core/session/src/index.ts)
 
 ## `subagent/*`
 

docs/cordis-catalog/services.md

@@ -167,7 +167,26 @@ abstract list(): Promise<SessionHeader[]>
 
 Types: [SessionEvent](../core-data-structures/core.md)
 
-Source: [`packages/session-persistence/session-persistence/src/index.ts:102`](../../packages/session-persistence/session-persistence/src/index.ts)
+Source: [`packages/session-persistence/session-persistence/src/index.ts:125`](../../packages/session-persistence/session-persistence/src/index.ts)
+
+## `ctx.sessionQuery` — `SessionQueryService`
+
+Session-history retrieval and provider coordination service.
+
+```ts cordis-catalog
+listSessions(): Promise<SessionRecord[]>
+async listEvents(sessionId: SessionId): Promise<SessionEventRecord[]>
+async readEvent(request: SessionEventReadRequest): Promise<SessionEventWindow>
+async traceSession(sessionId: SessionId): Promise<SessionLineageTrace>
+async traceEvent(sessionId: SessionId, seq: number): Promise<SessionEventTrace>
+registerSearchProvider(provider: SessionSearchProvider): () => void
+registerEventTextExtractor<K extends SessionEventType>( type: K, extractor: SessionEventTextExtractor<K>, ): () => void
+registerContentTextExtractor<K extends ContentBlockType>( type: K, extractor: SessionContentTextExtractor<K>, ): () => void
+searchSessions( request: SessionSearchRequest, exec?: SessionQueryExecContext, ): Promise<SessionSearchPage<SessionSearchHit>>
+searchEvents( request: SessionEventSearchRequest, exec?: SessionQueryExecContext, ): Promise<SessionSearchPage<SessionEventSearchHit>>
+```
+
+Source: [`packages/session-query/session-query/src/index.ts:59`](../../packages/session-query/session-query/src/index.ts)
 
 ## `ctx.sessions` — `SessionStore`
 
@@ -185,7 +204,7 @@ list(): Session[]
 fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session
 ```
 
-Source: [`packages/core/session/src/index.ts:405`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:413`](../../packages/core/session/src/index.ts)
 
 ## `ctx.subagents` — `SubagentService`